@font-face {
  font-family: 'Open-Sans';
  font-style: normal;
  font-weight: 400;
  src: local('Open Sans'), local('OpenSans'), url(../font/Open_Sans/opensans-regular-webfont.woff2) format('woff2'), url(../font/Open_Sans/opensans-regular-webfont.woff) format('woff');
}
@font-face {
  font-family: 'Open-Sans-Bold';
  font-style: normal;
  font-weight: 700;
  src: local('Open Sans Bold'), local('OpenSans-Bold'), url(../font/Open_Sans/opensans-bold-webfont.woff2) format('woff2'), url(../font/Open_Sans/opensans-bold-webfont.woff) format('woff');
}

html, body, ul, li, p { margin: 0; padding: 0; }
*:focus{ outline: none; }
img { -webkit-user-drag: none; user-drag: none; }
li { list-style: none; }

html { user-select: none; }

body {
  color: #d9dfe4;
  background: #1b2838;
  font-family: "Open-sans";
}      
     
header {
   width: 100%;
   height: 48px;
   background: #10182194;
   display: flex;
   box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
   padding: 0 32px;
   box-sizing: border-box;
}

header .logo {
  background: url("../img/logo.png") no-repeat;
  width: 32px;
  height: 32px;
  background-size: contain;
  background-position: center;
  margin: auto 5px auto 10px;
  filter: drop-shadow(5px 5px 5px #101010);
}

header .title {
  margin: auto auto auto 10px;
}

header .title .name {
  font-family: "Open-Sans-Bold";
  font-size: 22px;
}

header .title .description {
  font-size: 16px; 
  margin-left: 15px;
}

header nav {
  margin: auto 10px auto auto;
}

header nav a {
  cursor: pointer;
  display: inline-block;
  text-align: center;
  padding: 5px 10px;
  text-decoration: none;
  color: inherit;
  font-size: 26px;
  margin: 0 5px;
}

header nav a:hover {
  text-shadow: 0px 0px 20px white;
}

main {
  margin-top: 10px;
}

main .content{
   display: flex;
   flex-direction: column;
   align-items: center;
   min-height: calc( ( ( 100vh - 48px ) * 96 ) / 100 );
}

h1.headline {
  font-family: 'Open-Sans-Bold';
  font-size: 28px;
  line-height: 150%;
  text-align: center;
  margin: 18px 0;
}

h2 {
    color: #9ba0a5;
    font-family: "Open-Sans";
    font-weight: normal;
    font-size: 16px;
    text-align: center;
    max-width: 600px;
    margin: 13px 0 0 0;
}

.btn {
    background: #27374a;
    border: solid #3e5065 1px;
    padding: 10px 20px;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    display: inline-block;
    text-align: center;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}

.btn:hover {
  background: #1b2838;
  transition: 0.3s all ease-out;
}
        
.btn:active{
   transform: scale(0.8);
}

#btn-download {
  position: relative;
  margin-bottom: 22px;
}

#btn-download span {
  margin-left: 5px;
}

#btn-download .info
{
  position: absolute;
  color: #9ba0a5;
  font-size: 14px;
  width: 180px;
  bottom: 0px;
  left: -20px;
  transform: translateY(100%);
  padding-top: 5px;
}

.laptop {
   background: url("../img/surfacebook.svg") no-repeat;
   width: calc( (1038px * 80) / 100  );
   height: calc( (688px * 80) / 100  );
   background-size: contain;
   filter: drop-shadow(5px 5px 5px #101010);
   pointer-events: none;
}

.laptop .screen {
  background-image: url("../img/screen.png");
  background-repeat: no-repeat;
  width: calc( (774px * 80) / 100  );
  height: calc( (515px * 80) / 100  );
  margin-top: calc( (81px * 80) / 100  );
  margin-left: calc( (113px * 80) / 100  );
  background-size: cover;
  background-position: 0% 0%;
  animation: slide 10s ease-in-out infinite;
  animation-direction: alternate;
}

@keyframes slide {
  0%, 25% {
     background-position: 0% 0%
  }
  50%, 100% {
     background-position: 100% 0%
  }
}

.details {
  width: 100%;
  background: #fff;
  color: #1f1f1f;
  margin-top: 15px;
}

.details ul.content {
  width: 1200px;
  margin: 0 auto;
  padding: 20px 0;
}

.details ul.content li.row {
  display: flex;
  flex-direction: row;
  justify-content: center;
  margin: 30px 0 50px 0;
}

.details ul.content li.row:nth-child(even){
  flex-direction: row-reverse;
}

.details .img {
  width: 50%;
  padding: 10px 20px;
  box-sizing: border-box;
  pointer-events: none;
}

.details .img img {
  max-width: 100%;
  filter: drop-shadow(5px 5px 5px #101010);
  pointer-events: none;
}

.details .description {
  width: 50%;
  padding: 10px 60px;
  box-sizing: border-box;
}

h3 {
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0 0 12px 0;
  font-family: 'Open-Sans-Bold';
  font-size: 18px;
}

.details .description p {
  line-height: 2em;
}

.details .description p a,
.details .description p a:hover,
.details .description p a:visited {
  color: inherit;
}

.details .description p a:hover {
  text-decoration: none;
}

footer {
  width: 100%;
  background: #1b2838;
  color: inherit;
}

footer .wrap {
  width: 1200px;
  margin: 0 auto;
  padding: 20px 32px;
  box-sizing: border-box;
}

footer .wrap > p {
  display: block;
  text-align: center;
  padding: 20px 10px;
  font-size: 16px;
}

footer .wrap nav {
  display: flex;
  justify-content: space-between;
}

footer .wrap nav ul {
  margin: 0 auto;
  padding: 20px 32px;
}

footer .wrap nav ul li:first-child {
    list-style: none;
    font-family: "Open-Sans-Bold";
    margin: 0 0 14px 0;
    color: #868e96;
    font-size: .8rem;
    letter-spacing: .1em;
    text-transform: uppercase;
}

footer .wrap nav ul li{
  display: list-item;
  list-style: none;
  margin: 6px 0;
  color: #dadada;
  font-size: 16px;
}

footer a {
  color: inherit;
  text-decoration: underline;
}

footer a:hover, footer a:visited {
  text-decoration: none;
}

footer .wrap nav ul li a {
    transition: all .1s ease-in;
    position: relative;
    padding: 6px 0;
    text-decoration: none;
}

footer .wrap nav ul li a i{
    position: absolute;
    left: -30px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

footer .wrap nav ul li a i.tada { 
   animation: tada 2s linear infinite; 
   background-clip: padding-box;
   color: #ea0d0d;
}
          
@keyframes tada {
  0% {
     transform: translateY(-50%) scale(1);
  }
  10%, 20% {
     transform: translateY(-50%) scale(.9) rotate(-8deg);
  }
  30%, 50%, 70% {
     transform: translateY(-50%) scale(1.3) rotate(8deg);
  }
  40%, 60% {
     transform: translateY(-50%) scale(1.3) rotate(-8deg);
  }
  100%, 80% {
     transform: translateY(-50%) scale(1) rotate(0);
  }
}

footer div#back-to-top{
  margin: 0 auto;
  width: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
}

footer div#back-to-top div {
   background: url("../img/mouse_scroll.png") no-repeat;
   width: 23px;
   height: 37px;
   background-size: contain;
}

footer div#back-to-top span {
  padding: 10px;
}

@media screen and (min-width: 2000px) {
   .laptop {
    width: calc( (1038px * 100) / 100 );
    height: calc( (688px * 100) / 100 );
    margin-top: 15px;
  }
  .laptop .screen {
    width: calc( (774px * 100) / 100 );
    height: calc( (515px * 100) / 100 );
    margin-top: calc( (81px * 100) / 100 );
    margin-left: calc( (113px * 100) / 100 );
  }
}

@media screen and (max-width: 1225px) {
  .details ul.content li.row { flex-direction: column !important; }
  .details .img { margin: 0 auto; width: 50%;}
  .details .description { width: 80%; margin: 0 auto;}
  .details ul.content,
  footer .wrap { width: initial; }
  
}

@media screen and (max-width: 950px) {
  header .title .description { display: none; }
  .details .img { width: 80%;}
}

@media screen and (max-width: 850px) {
  
  .laptop {
    width: calc( (1038px * 50) / 100 );
    height: calc( (688px * 50) / 100 );
    margin-top: 15px;
  }
  .laptop .screen {
    width: calc( (774px * 50) / 100 );
    height: calc( (515px * 50) / 100 );
    margin-top: calc( (81px * 50) / 100 );
    margin-left: calc( (113px * 50) / 100 );
  }
  h1.headline { font-size: 22px; }
  .details .description { width: 100%;}
}


@media screen and (max-width: 550px) {
  
  main .content { min-height: auto; }
  .laptop { display: none }
  body,
  footer .wrap > p { font-size: 14px; }
  header .title .name,
  h1.headline { font-size: 18px; }
  h2, h1.headline { padding: 0 15px }
  h2, h3 { font-size: 16px; }
  .details ul.content li.row { margin: 10px 0 10px 0; }
  footer .wrap nav { flex-direction: column; }
  footer .wrap nav ul { margin: 0; }
}

@media screen and (max-width: 460px) {
  header nav { display: none; }
  header .title .name,
  h1.headline { font-size: 16px; }
  .details .description { padding: 10px 30px; }
}